BandNext - Discover bands that sound similar to artists you already love with BandNext. A single click saves your results to a Youtube playlist.
avant.fm - Avant.fm provides a customizable, listenable feed of new releases from the best indie record labels, across all genres.
Spotify - Map shows when two people play same song at same time
KCRW - Music, news & culture curated for you
stats.fm - With the click of a button you'll be logged with your Spotify account and you'll instantly gain access to a valhalla of cool stats and insights.
Kodi - Kodi is an award winning free and open source media player that got its start on the Xbox console.